advertisement

Lecture 01 concept of computer system

46 %
54 %
advertisement
Information about Lecture 01 concept of computer system
Education

Published on March 8, 2014

Author: AKHLAS

Source: slideshare.net

Description

Management Information System
advertisement

Presented by: Dr. Akhlas Ahmed Preston University

An electronic device, operating under the control of instructions stored in its own memory unit, that can accept data (input), manipulate the data according to specified rules (process), produce information (output) from the processing, and store the results for future use.

Central Processing Unit (CPU) Control Unit Input Data Primary Storage Unit Output Data Arithmetic and Logic Unit Registers Secondary Storage Unit

Any hardware component that allows you to enter data, programs, commands, and user responses into a computer Includes – Keyboard Mouse Optical Scanner Touch Screen, so on

The processor, also called the central processing unit (CPU), has subdivided into two major subunits • The control unit interprets the instructions • The arithmetic/logic unit (ALU) performs the logical and arithmetic processes

Converts the electronic information produced by the processor into human-intelligible form for presentation to end users. Includes – Video Display Unit Printer Audio Response Unit

Stores data and software instructions needed for processing.  Primary Storage Unit – RAM & ROM  Secondary Storage Unit – Floppy disk, or diskette Compact Disc CD-R, CD-RW, CD-ROM DVDs – DVD-ROM, DVD-R, DVD-RW, DVD-RAM Flash disk/USB drive Hard disk ( non removable) Cache Memory for high speed – Storage circuitry stores temporary instructions and data elements

1. TYPES OF COMPUTER SYSTEMS • Microcomputer systems •Personal computers, PDA’s, workstations etc. • Midrange systems •Network or Web servers, Multi-user systems etc. • Mainframe systems •Enterprise systems, Super servers, Transaction Processors etc.

2. PERIPHERALS •Monitors •Printers •Scanners •Hard Disk Drives •CD & DVD (Dissociated Vertical Deviation) Drives •Backup Systems

3. INPUT TECHNOLOGIES •Pointing Devices •Pen based Computing •Speech Recognition System •Optical scanning •Magnetic stripe •Smart Cards

4. OUTPUT TECHNOLOGIES •Video Output •Printed Output •Storage •Magnetic Disks •Floppy disks •Hard disk drives •Magnetic Tape •Optical Disks

Is the general term for various kinds of programs used to operate and manipulate computers and their peripheral devices.

TYPES OF SOFTWARE •Application Software: performs information processing tasks for end users. •General purpose application programs •Application specific programs (custom software) •System Software: manages and supports operations of computer systems and networks. •System management programs. •System development programs.

Application Software  Business application software  Software suites  Web browsers  Electronic mail & Instant messaging  Word processing  DTP (Desktop Publishing)  Electronic spreadsheets  Presentation graphics  Personal information managers  Groupware

System software System management programs: Programs that manage the hardware, software, network and data resources of computer systems during the execution of information processing jobs of the user. E.g. Operating system, DBMS etc. System development program: Programs that help users develop information system programs and procedures and prepare user programs for computer processing. E.g. Programming language translators & editors, CASE (computer aided software engineering)

Computer software Performs information processing tasks for end users Manages & supports operations of computer systems and networks Application software General purpose application programs Word processor, Spreadsheet Web browsers Applicationspecific programs CRM, ERP, E- commerce System software System development programs CASE packages, Programming editors & tools System management programs OS, DBMS, Application servers

THANK YOU

Add a comment

Related presentations

Related pages

Lecture notes: Essential Computer concepts

Lecture notes: Essential Computer concepts ... o Operating Systems: manages the computers resources Loads data and instructions into memory
Read more

Embedded Systems Course - Lecture 01: Introduction to ...

Want to watch this again later? Sign in to add this video to a playlist. This video is Lecture 1 of UNC Charlotte Embedded Systems course ...
Read more

SOME BASIC CONCEPTS OF ENGINEERING ANALYSIS

... the course. objective of lectures Some basic concepts of engineering ... concepts 01 engineering ... computers ANALYSIS OF DISCRETE SYSTEMS
Read more

6.302 Electronic Feedback Systems - Lecture 01 | MIT Video

6.302 Electronic Feedback Systems - Lecture 01. ... doctoral student of Electrical Engineering and Computer ... an introduction to the concept of the ...
Read more

Embedded Systems Course - Lecture 03: Concepts of ...

This video is Lecture 3 of UNC Charlotte Embedded Systems course (ECGR4101/5101) taught by James Conrad, Associate Professor of Electrical and ...
Read more

Lecture 16: Atomicity concepts | Video Lectures | Computer ...

... Computer System Engineering ... Lecture 16: Atomicity concepts Course Home ... Lecture 12: End-to-end ...
Read more

LECTURE -I BASIC CONCEPTS OF COMPUTERS - ai42 | Just ...

LECTURE -I BASIC CONCEPTS OF COMPUTERS 1.1 INTRODUCTION ... This process of counting of large numbers generated various systems of numeration like
Read more

Operating Systems - CS604 - VU Video Lectures

Operating Systems - CS604 Lecture 01. ... Organization Of A Computer System, Purpose Of A Computer System, Setting The Stage For OS Concepts And Principles.
Read more

Introduction to Networked Systems - Colin Perkins

1 Introduction to Network Systems Protocols and Layers Introduction to ... Computer Networks: A Systems ... the lectures introduce the concepts, ...
Read more